BRADLEY Manning says he plans to live as a woman and begin hormone therapy, a day after he got 35 years in jail for sending classified information to WikiLeaks.
He plans to live as a woman named Chelsea, he said in a written statement.
A military judge announced the sentence in Manning's court-martial.
Manning's struggle with gender identity disorder – his sense that he was a woman trapped in a man's body – was a key part of his defence.
Lawyers presented evidence of Manning's struggle with gender identity, including a photo of him in a blond wig and lipstick that he sent to a therapist.
Manning (25) faced up to 90 years in prison.
Prosecutors had wanted at least a 60-year sentence, saying it would dissuade other soldiers from following in his footsteps.
With good behaviour and credit for the more than three years he has been held, Manning could be out in about six-and-a-half years, according to his defence lawyer David Coombs.
Manning has been called both a whistleblower and a traitor for giving more than 700,000 classified military and diplomatic documents, plus battlefield footage, to WikiLeaks.